Improvement in casting tackle-blocks



N. PETERS, PHOTO-LITHOGRAPHER, WASIIINGYON4 D C.

with the core-box.

` UNiTnD `*raras ATENT OFFICE.. y A

JOSEPH W. NORCROSOF MIDDLETOWN, CONBUC'IICUT.` H

IMPROVEMENT |N CASTING TAcKLE-BLooKsW Specification forming part of Letters Patent No. 47,656, datedMay 9, 1865. e

` part ofthe core-box. Fig. 2 is a vertical central `section of the same, the plane of section being indicated by the line x x, Fig. I. Fig. 3 is a face View of a scraper used in conjunction Fig. 4 is an end View of the same; Fig. 5 is a transverse verticalsection of the second part of the core-box, the line y y, Fig. 6, indicating the plane of section. Fig. 6 is a horizontal section of the same, the plane of section being indicated by the line z z, Fig. 5. Fig 7 is a side elevation of the pattern which I use in casting tackle-blocks, with the core-print for the hook, if the hook is cast separate.. Fig. 8` is an edge View of` the same, showing the core and patterns in position, when the hook and tackle-blocks are to be cast simultaneously.

Similar letters of reference indicate like the hook is carefully removed from the corei box B and placed in the space left in the mold by the core-print Bi, Fig. 7, which of course parts.

The principal object of this invention is to cast the eye of a tackle-block into the eye of a hook in such a manner that the two cannot possibly be separated, neither by design n or by accident, except by cutting or splitting open either of the eyes. The invention, however, may be applied for the purpose of casting two rings together, or for other similar purposes.

In castinga tackleblocl; so that its eye will pass through the eye of `a hook the modus op` ewmdi is as follows: The eye a of the hook A, which in this case is ready cast and finished, is first placed into the corebox B, Fig. 1,with the hook pointing downward, and the corebox is filled with sand, or any other suitable material, the surplus being scraped off by the concave edge of the scraper C, Figs. 3 and 4. In raising the eye carefully from this co`re box a small quantityof sand adheres to it,

lling up the space which existsunder the inner edge of the eye, if the same is placed, Thehook is now* turned up, and its eye placed in the core-box B', Figs. 5 and 6, thespace b under the inner edge of said eye, Fig. 5, being filled: up `by]` the sand adhering to it from the previous opdown on a fiat surface.

eration. Said core-box is provided with a movable semicircular centerfpin, c, which is secured to ahinged lever, D, so thatit can be l i raised above or depressed below `the inner y.

surface of thecore-box. 1 After the` eye of the hook has been adjusted in this core box, the

center-piu is raised to its full` height, and the annular space existing between the inner sur face of the eye is filled with sand, or-other suitable material, the surplus being scraped o by the concave edge of a scraper, O,which is secured to a spring-bar, f, as clearly shown in Fig. 5. suitable standard, g, above the corebox, and

a handle, h, on its top end serves `to @depress y e the same until the edge of the scraper strikes .i e `the body of the eye, and to turn it round so that the surplus sand is removed.` The center-pin is now carefully withdrawn, leaving in the sand contained inthe eyea a circular hole corresponding to a sectionof `the eye oi the tackleblock to be cast. `Thus prepared corresponds preciselyto `the form of the hook A. This core-print is firmly connected to the `pattern I? of the tackle-block, which is molded one-half in the lower and one-half in the upper flask. The metal runiuto the mold or cavity left in the sand after the pattern l? has i been removed passes through the hole made` by the center-pin c of the core-boxFB, and

forms an eye which interlocks with the eye of l the hook, as indicated` in Fig. 8. If both parts, the tackle-block and the hook, are to be This spring-bar is guided ina eye of the hook. Inthis oase the pattern P must belpr'ovid'ed with a core-print corresponding in form to the core shown'in Fig. 8,

and after the pattern has been drawn out of I claim as new and desire to secure by Letters Patent- The Within-described apparatus for forming the mold for casting the eyes of a tackleblock and the eye of a hook or any other two eyes or rings together, or any equivalent means, constructed and operating substantially as herein set forth.

JosEPH W. Nononoss.

Witnesses: y Y M. M. LIVINGsToN, J. P. HALL. 

